.header_box {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  z-index: 1;
  box-sizing: border-box;
  color: #fff;
  padding: 0 30rpx;
  justify-content: space-between;
}

@keyframes heartScale {
  0% {
    transform: scale(1);
    opacity: 1;
  }

  100% {
    transform: scale(3);
    opacity: 0;
  }
}

.heart_box {
  .heart_img {
    animation: heartScale 1s ease-out forwards;
    width: 100rpx;
    height: 100rpx;
  }
}
